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The BlazersStudent #1, Student #2, and Student #3
LB144 F06
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• Strongylocentrotus purpuratus
• Xenopus laevis
• Oryzias latipes
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Sea Urchin
Unfertilized egg viewed at 400x magnification on compound microscope0 hours live specimen
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Sea Urchin
Sea Urchin eggs after fertilization
Sea urchin blastula in motion
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Sea Urchin
Vitelline Envelope
Sperm
Fertilized Egg viewed at 400x magnification on compound microscope1 minute live specimen
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Sea Urchin
2 cell stage viewed at 400x magnification on compound microscope
1-3 hours live specimen
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Sea Urchin
Early blastula viewed at 400x magnification on compound microscope
24 hours old
Live specimen
Blastocoel
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Sea Urchin
Blastocoel
Animal Pole
Late blastula viewed at 400x magnification on compound microscope48 hours live specimen
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Sea Urchin
Blastopore
Archenteron
Blastocoel
Animal plateGastrula viewed at 400x magnification
on compound microscopePrepared slide
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Sea Urchin
Pluteus larva viewed at 400x magnification on compound
microscope
Prepared slide
Intestine
Stomach
Oral arm
Esophagus
Mouth
![Page 11: The Blazers Student #1, Student #2, and Student #3 LB144 F06](https://reader038.vdocuments.mx/reader038/viewer/2022110205/56649cb05503460f9497521d/html5/thumbnails/11.jpg)
Xenopus
Unsegmented egg viewed at 400x magnification on compound microscope
Prepared slide
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Xenopus
Egg cleavage viewed at 400x magnification on compound
microscope
Prepared slide
Pigmented cortex
Blastocoel
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Xenopus
Blastula viewed at 400x magnification on compound
microscope
Prepared slide
Vegetal Pole
Blastocoel
Animal Pole
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Xenopus
Neural Tube in Neurulation viewed at 400x magnification on compound
microscope
Prepared slide
Neural Tube
Midgut
Notochord
Epidermis
Coelem
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Xenopus
7mm Embryo viewed at 100x magnification on compound microscope
Prepared slide
Yolk endoderm
Spinal cord
Notochord
Anus
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Xenopus
10mm Larva viewed at 100x magnification on compound
micrscope
Prepared slide
Details of this slide were not available
Mouth
Tail
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Medaka
Elevated germinal disk viewed at 30x magnification on dissection
mircroscope
30 minutes live specimen
Oil droplets
Germinal disk
Chorion membrane
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Medaka
Late neurula stage viewed at 30x magnification on dissection microscope
24 hours live specimen
Neural tube
Blastoderm
Oil drop
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Medaka
Optic cup stage viewed at 30x magnification on dissection microscope
26 hours live specimen
Optic cup
Optic lens
Oil droplet
Yolk sac
Cilia
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Medaka
Retinal pigmentation viewed at 30x magnification on dissection
microscope
2 days 6 hours live specimen
Pigmented optic cup
Optic lens
Pectoral fin bud
Yolk sac
Oil drop
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Medaka
Pink blood stage viewed at 30x magnification on dissection
microscope
3 hours live specimen
Pectoral fin bud
Vitelline Vein
Yolk sac
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Medaka
Pre-hatching stage viewed at 30x magnification on dissection microscope
5 days live specimen
Oil dropletOptic lens
Chromatocyte
Cilia
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• Sponge• Hydra
• Planarian• Roundworm• Earthworm
• Mussel• Crayfish
• Grasshopper• Sea Star• Lancelet
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• Porifera – Sponge• Cnidaria – Hydra• Platyhelminthes – Planarian• Nematoda – Roundworm• Annelida – Earthworm• Mollusca – Mussel• Arthropoda – Crayfish and Grasshopper• Echinodermata – Sea star• Chordata - Lancelet
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Sponge
Cross-section view of sponge viewed at 32x magnification on compound microscope
Prepared Slide
SpongocoelRadial canals
Ostium
Incurrent canal
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Sponge
Longitudinal section of sponge viewed at 32x magnification on compound
microscope
Prepared slide
Spongocoel
Radial canal
Incurrent canal
Ostium
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Sponge
Sponge tissue viewed at 32x magnification on compound microscope
Prepared slide
Spongin fibers
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Hydra
Anterior region of hydra viewed at 32x magnification on compound
microscope
Live specimen
Body column
Tentacles
Mouth
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Hydra
Posterior region of hydra viewed at 32x magnification on compound microscope
Live specimen
Basal disc
Body column
Tentacles
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Hyrda
Longitudinal section of hydra viewed at 32x magnification on
compound microscope
Prepared slide
Tentacles
Basal disc
Gastrodermis
Epidermis
Mesoglea
Gastrovascular cavity
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Planarian
Anterior region of planarian viewed at 32x magnification on compound
microscope
Live specimen
Eyespot
Brain
Auricle
Pharynx
![Page 32: The Blazers Student #1, Student #2, and Student #3 LB144 F06](https://reader038.vdocuments.mx/reader038/viewer/2022110205/56649cb05503460f9497521d/html5/thumbnails/32.jpg)
Planarian
Mid-section region of planarian viewed at 32x magnification on compound
microscope
Live specimen
IntestineGastrovascular cavity
Epidermis
Dorsalventral muscles
Ventral nerve cord
Adhesive gland
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Planarian
Ventral nerve cord
Pharynx
Mid-section of body viewed at 32x magnification on compound microscope
Live specimen
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Roundworm
Anterior region of roundworm viewed at 30x magnification on dissection microscope
Preserved specimen
Mouth
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Roundworm
Pharynx
Anterior region of pharynx viewed at 30x magnification on dissection microscope
Preserved specimen
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Roundworm
Intestine
Ovaries
Intestine viewed at 30x magnification on dissection microscope
Preserved specimen
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Roundworm
Oviduct viewed at 20x magnification on dissection microscope
Preserved specimen
Oviduct
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Roundworm
Ovaries
Ovaries viewed at 30x magnification on dissection microscope
Preserved specimen
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Roundworm
Y-shaped uterus
Y-shaped uterus viewed at 30x magnification on dissection microscope
Preserved specimen
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Roundworm
Vulva viewed at 25x magnification on dissection microscope
Preserved specimen
Vulva
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Roundworm
Female cross-section viewed at 32x magnification on compound microscope
Prepared slide
UterusOvaries
Cuticle
Epidermis
Longitudinal muscles
Intestine
Pseudocoel
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Roundworm
Male cross-section viewed at 32x magnification on compound microscope
Prepared slide
Intestine
Vas deferens
Excretory canal
Dorsal nerve cord
Ventral nerve cord
Cuticle
Longitudinal muscles
Sperm
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Earthworm
Anterior region viewed at 30x magnification on dissection microscope
Preserved specimen
Mouth
Prostomium
![Page 44: The Blazers Student #1, Student #2, and Student #3 LB144 F06](https://reader038.vdocuments.mx/reader038/viewer/2022110205/56649cb05503460f9497521d/html5/thumbnails/44.jpg)
Earthworm
Seminal vesicles viewed at 30x magnification on dissection microscope
Preserved specimen
Seminal vesicles
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Earthworm
The five hearts viewed at 30x magnification on dissection microscope
Preserved specimen
Hearts
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Earthworm
Crop and gizzard viewed at 30x magnification on dissection
microscope
Preserved specimen
Crop
Gizzard
Pumping vessels
![Page 47: The Blazers Student #1, Student #2, and Student #3 LB144 F06](https://reader038.vdocuments.mx/reader038/viewer/2022110205/56649cb05503460f9497521d/html5/thumbnails/47.jpg)
Earthworm
Intestine and dorsal blood vessel viewed at 30x magnification on dissection
microscope
Preserved specimen
Intestine
Dorsal blood vessel
Pumping vessels
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Earthworm
Ventral nerve cord viewed at 30x magnification on dissection microscope
Preserved specimen
Ventral nerve cord
Intestine
Clitellum
![Page 49: The Blazers Student #1, Student #2, and Student #3 LB144 F06](https://reader038.vdocuments.mx/reader038/viewer/2022110205/56649cb05503460f9497521d/html5/thumbnails/49.jpg)
Earthworm
Cross section viewed at 32x magnification on compound microscope
Prepared slide
Intestine
Coelom
Epidermis
Longitudinal muscles
Circular muscles
![Page 50: The Blazers Student #1, Student #2, and Student #3 LB144 F06](https://reader038.vdocuments.mx/reader038/viewer/2022110205/56649cb05503460f9497521d/html5/thumbnails/50.jpg)
Earthworm
Cross section viewed at 32x magnification on compound microscope
Prepared slide
Ventral nerve cord
Epidermis
Longitudinal muscles
Circular muscles
Coelom
Intestine
![Page 51: The Blazers Student #1, Student #2, and Student #3 LB144 F06](https://reader038.vdocuments.mx/reader038/viewer/2022110205/56649cb05503460f9497521d/html5/thumbnails/51.jpg)
Mussel
Full body of mussels viewed at 100x magnification on compound microscope
Prepared slide
TeethValve
Adductor muscle
![Page 52: The Blazers Student #1, Student #2, and Student #3 LB144 F06](https://reader038.vdocuments.mx/reader038/viewer/2022110205/56649cb05503460f9497521d/html5/thumbnails/52.jpg)
Mussel
Full body mussel viewed at 400x magnification on compound microscope
Prepared slide
TeethAdductor muscle
Valve
![Page 53: The Blazers Student #1, Student #2, and Student #3 LB144 F06](https://reader038.vdocuments.mx/reader038/viewer/2022110205/56649cb05503460f9497521d/html5/thumbnails/53.jpg)
Mussel
Cross section viewed at 32x magnification on compound microscope
Prepared slide
Water tubes (brood chamber)
Blood vessel
Surface of gill
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Clam
Gill viewed at 7x magnification on dissection microscope
Preserved specimen
![Page 55: The Blazers Student #1, Student #2, and Student #3 LB144 F06](https://reader038.vdocuments.mx/reader038/viewer/2022110205/56649cb05503460f9497521d/html5/thumbnails/55.jpg)
Clam
Posterior adductor muscle viewed at 7x magnification on dissection microscope
Preserved specimen
Posterior adductor muscle
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Clam
Mantel viewed at 7x magnification on dissection microscope
Preserved specimen
![Page 57: The Blazers Student #1, Student #2, and Student #3 LB144 F06](https://reader038.vdocuments.mx/reader038/viewer/2022110205/56649cb05503460f9497521d/html5/thumbnails/57.jpg)
Crayfish
Stomach
Stomach viewed at 7x on dissection microscope
Preserved specimen
![Page 58: The Blazers Student #1, Student #2, and Student #3 LB144 F06](https://reader038.vdocuments.mx/reader038/viewer/2022110205/56649cb05503460f9497521d/html5/thumbnails/58.jpg)
Crayfish
Digestive gland
Heart
Ostia
Digestive gland and heart viewed at 7x magnification on dissection microscope
Preserved specimen
![Page 59: The Blazers Student #1, Student #2, and Student #3 LB144 F06](https://reader038.vdocuments.mx/reader038/viewer/2022110205/56649cb05503460f9497521d/html5/thumbnails/59.jpg)
Crayfish
Gills viewed at 7x magnification on dissection microscope
Preserved specimen
Gill
Digestive gland
![Page 60: The Blazers Student #1, Student #2, and Student #3 LB144 F06](https://reader038.vdocuments.mx/reader038/viewer/2022110205/56649cb05503460f9497521d/html5/thumbnails/60.jpg)
Crayfish
Intestine viewed at 7x on dissection microscope
Preserved specimen
Intestine
Muscle
Digestive gland
![Page 61: The Blazers Student #1, Student #2, and Student #3 LB144 F06](https://reader038.vdocuments.mx/reader038/viewer/2022110205/56649cb05503460f9497521d/html5/thumbnails/61.jpg)
Crayfish
Testes viewed at 7x magnification on dissection microscope
Preserved specimen
Testes
Digestive gland
![Page 62: The Blazers Student #1, Student #2, and Student #3 LB144 F06](https://reader038.vdocuments.mx/reader038/viewer/2022110205/56649cb05503460f9497521d/html5/thumbnails/62.jpg)
Crayfish
Nerve cords
Brain
Green glands
Anterior region viewed at 7x magnification on dissection microscope
Preserved specimen
Circumesophageal connective
![Page 63: The Blazers Student #1, Student #2, and Student #3 LB144 F06](https://reader038.vdocuments.mx/reader038/viewer/2022110205/56649cb05503460f9497521d/html5/thumbnails/63.jpg)
Crayfish
Mouth viewed at 7x magnification on dissection microscope
Preserved specimen
Mandible
Maxilla
3rd maxilliped
![Page 64: The Blazers Student #1, Student #2, and Student #3 LB144 F06](https://reader038.vdocuments.mx/reader038/viewer/2022110205/56649cb05503460f9497521d/html5/thumbnails/64.jpg)
Grasshopper
Anterior region of grasshopper viewed at 7x magnification on dissection microscope
Preserved specimen
Antenna
Compound eye
Maxilla
PalpLabrum
Frons
Gena
Clypeus
![Page 65: The Blazers Student #1, Student #2, and Student #3 LB144 F06](https://reader038.vdocuments.mx/reader038/viewer/2022110205/56649cb05503460f9497521d/html5/thumbnails/65.jpg)
Grasshopper
Gastric caeca viewed at 7x magnification on dissection microscope
Preserved specimen
Gastric caeca
Egg mass
Crop
![Page 66: The Blazers Student #1, Student #2, and Student #3 LB144 F06](https://reader038.vdocuments.mx/reader038/viewer/2022110205/56649cb05503460f9497521d/html5/thumbnails/66.jpg)
Grasshopper
Egg mass viewed at 9x magnification on dissection microscope
Preserved specimen
Egg mass
Malpighian tubules
![Page 67: The Blazers Student #1, Student #2, and Student #3 LB144 F06](https://reader038.vdocuments.mx/reader038/viewer/2022110205/56649cb05503460f9497521d/html5/thumbnails/67.jpg)
Grasshopper
Oviduct viewed at 7x magnification on dissection microscope
Preserved specimen
Oviduct
Malpighian tubules
![Page 68: The Blazers Student #1, Student #2, and Student #3 LB144 F06](https://reader038.vdocuments.mx/reader038/viewer/2022110205/56649cb05503460f9497521d/html5/thumbnails/68.jpg)
Grasshopper
Malpighian Tubules viewed at 12x on dissection microscope
Prepared specimen
Egg mass
Malpighian tubules
![Page 69: The Blazers Student #1, Student #2, and Student #3 LB144 F06](https://reader038.vdocuments.mx/reader038/viewer/2022110205/56649cb05503460f9497521d/html5/thumbnails/69.jpg)
Grasshopper
Posterior region viewed at 7x magnification
Preserved specimen
OvipositorExoskeleton
Segments
![Page 70: The Blazers Student #1, Student #2, and Student #3 LB144 F06](https://reader038.vdocuments.mx/reader038/viewer/2022110205/56649cb05503460f9497521d/html5/thumbnails/70.jpg)
Sea Star
Madreporite viewed at 7x magnification on dissection microscope
Preserved specimen
Madreporite
Spine
Dermal gills
Pedicellariae
![Page 71: The Blazers Student #1, Student #2, and Student #3 LB144 F06](https://reader038.vdocuments.mx/reader038/viewer/2022110205/56649cb05503460f9497521d/html5/thumbnails/71.jpg)
Sea Star
Stomach viewed at 7x magnification on dissection microscope
Preserved specimen
StomachGonads
![Page 72: The Blazers Student #1, Student #2, and Student #3 LB144 F06](https://reader038.vdocuments.mx/reader038/viewer/2022110205/56649cb05503460f9497521d/html5/thumbnails/72.jpg)
Sea Star
Ambulacral ridge viewed at 7x magnification on dissection microscope
Preserved specimen
Ambulacral ridge
Gonads
Pyloric cecum
![Page 73: The Blazers Student #1, Student #2, and Student #3 LB144 F06](https://reader038.vdocuments.mx/reader038/viewer/2022110205/56649cb05503460f9497521d/html5/thumbnails/73.jpg)
Sea Star
Gonads viewed at 7x magnification on dissection microscope
Preserved specimen
Gonads
Ambulacral ridge
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Sea Star
Pyloric cecum (digestive gland) viewed at 7x magnification on dissection microscope
Preserved specimen
Pyloric cecum
Spines
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Sea Star
Ampullae viewed at 7x magnification on dissection microscope
Preserved specimen
Ampullae Gonads
Pyloric cecum
Ambulacral ridge
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Sea Star
Cross section viewed at 32x magnification on compound microscope
Prepared specimen
Coelom
Radial water canal
Pyloric cecumSkeletal plate
Sucker
Tube foot
Gonads
Ambulacral groove
Pedicellariae
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Lancelet
Anterior region of lancelet viewed at 20x magnification on dissection microscope
Preserved specimen
Cirrus
Gills
Pharyngeal gill slits
Wheel organ
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Lancelet
Posterior region of lancelet viewed at 9x on dissection microscope
Preserved specimen
AnusMyotomes
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Lancelet
Pharyngeal gill slits viewed at 32x on compound microscope
Prepared slide
Gills
Notochord
Dorsal nerve cord
Fin rays
Photoreceptors
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Lancelet
Anterior region of lancelet viewed at 32x magnification on compound microscope
Prepared slide
Cirrus
Gills
Photoreceptors
Wheel organ
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Lancelet
Posterior region of lancelet viewed at 32x on compound microscope
Prepared slide
Anus
Intestine
Fin rays
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Lancelet
Cross section viewed at 32x magnification on compound microscope
Prepared slide
Myotomes
Intestine
NotochordDorsal nerve cord
Dorsal fin
Villi
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Resources
• LB144 7th Edition Lab Book Fall 2006
• Investigating Biology 5th Edition
• LB144 Red Lab Book